Android的系统通知栏小例子

package com.example.notification;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		create();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_main, menu);
		return true;
	}
	private void create(){
		String ns = Context.NOTIFICATION_SERVICE;
		NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
		//2-实例化Notification：
		int icon = R.drawable.ic_launcher;
		CharSequence tickerText = "Hello";
		long when = System.currentTimeMillis();
		Notification notification = new Notification(icon, tickerText, when);
		Context context = getApplicationContext();
		CharSequence contentTitle = "My notification";
		CharSequence contentText = "Hello World!";
		Intent notificationIntent = new Intent(this, MainActivity.class);
		PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
		notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
		final int HELLO_ID = 1;
		mNotificationManager.notify(HELLO_ID, notification);
	}
}

简单不？？